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when toggle format what by license comment
May 10, 2022 at 11:18 comment added Carl Witthoft This is partly true. Nearly all LED bulbs - phosphor or not - are driven with a pulse stream. It could be rectified 60 Hz , or there can be a digital controller which adjusts the duty cycle within some base frequency to control the mean output brightness.
May 9, 2022 at 19:19 history answered Kevin Reid CC BY-SA 4.0